/*
public class MyThread extends Thread{
    @Override
    public void run() {
        while (true) {
            System.out.println("这里是thread");
        }
    }
    public static void main(String[] args) {
        MyThread thread = new MyThread() ;
        thread.start();
        while (true) {
            System.out.println("这里是main线程");
        }
    }
}
*/
